SUS 321 TF chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 321 TF

JIS SUS 321 TF

Profile

This page is mainly introduced the SUS 321 TF chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 321 TF,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Steel tubes for fired heater

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.08
Si   1.00
Mn   2.00
P   0.045
S   0.03
Cr 17.00  19.00
Ni 9.00  13.00
Mo  
N  
Ti 5×C% 

Mechanical Properties

Tensile strength 107~186 σb/MPa
Yield Strength 730 σ 0.2 ≥/MPa
Elongation 92 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 867~881 -
HRC 30 -

Physical Properties

Thermal expansion 29-90 e-6/K
Thermal conductivity 89-04 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8647-0676 째C
Density 8719-3577 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

Size Availability

Steel Grade Specification Processing range(mm)
SUS 321 TF Stainless Steels Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download